feat(datepicker): pass options from popup to inline

- Pass through options object wholesale from popup to inline datepicker

Closes #5355

BREAKING CHANGE: This breaks any snake-cased key usage, i.e.
`show-weeks`. Convert all keys used to camelCase.

src/datepicker/datepicker.js

@@ -767,14 +767,11 @@ function(scope, element, attrs, $compile, $parse, $document, $rootScope, $positi
     }
 
     if (scope.datepickerOptions) {
-      angular.forEach(scope.datepickerOptions, function(value, option) {
-        // Ignore this options, will be managed later
-        if (['minDate', 'maxDate', 'minMode', 'maxMode', 'initDate', 'datepickerMode'].indexOf(option) === -1) {
-          datepickerEl.attr(cameltoDash(option), value);
-        } else {
-          datepickerEl.attr(cameltoDash(option), 'datepickerOptions.' + option);
-        }
-      });
+      datepickerEl.attr('datepicker-options', 'datepickerOptions');
+
+      if (angular.isDefined(scope.datepickerOptions.datepickerMode)) {
+        datepickerEl.attr('datepicker-mode', 'datepickerOptions.datepickerMode');
+      }
     }
 
     angular.forEach(['minMode', 'maxMode', 'datepickerMode', 'shortcutPropagation'], function(key) {

src/datepicker/test/datepicker.spec.js

@@ -2103,7 +2103,7 @@ describe('datepicker', function() {
         describe('show-weeks', function() {
           beforeEach(function() {
             $rootScope.opts = {
-              'show-weeks': false
+              showWeeks: false
             };
             var wrapElement = $compile('<div><input ng-model="date" uib-datepicker-popup datepicker-options="opts" is-open="true"></div>')($rootScope);
             $rootScope.$digest();
@@ -2123,7 +2123,7 @@ describe('datepicker', function() {
           beforeEach(function() {
             $rootScope.date = null;
             $rootScope.opts = {
-              'initDate': new Date('November 9, 1980')
+              initDate: new Date('November 9, 1980')
             };
             var wrapElement = $compile('<div><input ng-model="date" uib-datepicker-popup datepicker-options="opts" is-open="true"></div>')($rootScope);
             $rootScope.$digest();